main-step2-B.yml

- name: Login to GCP
  uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
  with:
    service_account_email: ${{ secrets.GCP_EMAIL }}
    service_account_key: ${{ secrets.GCP_ACCOUNT_KEY }}
    project_id: ${{ secrets.GCP_PROJECT }}
    export_default_credentials: true
- name: Push the Docker image to GCP
    run: |
      gcloud auth configure-docker --quiet
      docker push gcr.io/${{ secrets.GCP_PROJECT }}/${{ secrets.GCP_APP_NAME }}